Savings on a schedule

Stack buys Bitcoin, Ether or NEAR for you every week, skips the weeks when fees run high, and sends the coins to your own wallet.

Try it with example data

No wallet or money needed for the demo. Signing in only asks your wallet to sign a message.

Set it up once

Add funds

You send
250 USDC on Solana
Arrives as
$249.10
In your vault

Funded

Send almost any token from any chain. It lands in your vault as dollars.

Your plan

Buy
Bitcoin
How much
$100 every week
Fee limit
3.00%
Send to
bc1qw5…f3t4

Planned

Pick the coin, the amount, how often, your own address and the most you'll pay in fees.

Latest buys

30 Oct · $1000.00122812 BTC
23 Oct · $1000.00122812 BTC
16 Oct · $0Skipped: fees 3.95%
9 Oct · $1000.00122812 BTC

Stacked

Each week your vault buys and the coins arrive in your wallet. Expensive weeks are skipped.

Fees, checked every week

Next Bitcoin buy

$100
Fees
1.75%
You get
$98.25 of BTC

Within your 3% limit: this buy goes ahead.

Bitcoin's network charges about $1.50 to deliver each buy, so buys under $55 cost more than 3%. Estimates from real quotes; every real buy is checked against a live one.

Fourteen weeks of a $100 plan: twelve buys, two weeks skipped when fees ran high, and this week's buy on its way.

Your vault, your rules

Your dollars sit in a vault only you can empty. Each buy is capped by the vault's own rules≤ $100 a week. Pause any time, and the coins land in your own wallet.

These limits are written into your vault's contract on NEAR, not kept as a promise on a server. Each one has a test you can run.

Read the vault's rules
A black 19th-century money box with its key in the lock
A 19th-century money box. The key was the whole security model.
Stacks of copper and silver coins
Small amounts, often, add up.
A gold coin from a buried hoard, on a pale background
A gold coin from a hoard someone kept for themselves.

Fair questions

Only start a buy your vault allows: at most one per period, never more than your amount, delivered to the address you set. It can't withdraw, change your plan or change where coins go. If its key were ever stolen, the most it could misdirect is one buy per period until you press Pause.

Start your stack

The button opens a private example vault with four weeks of history. No wallet, no money, nothing to install.

Plan a weekly buy

$

Every week, about 1.75% in fees, so $5,200 a year into Bitcoin.

Stack: savings on a schedule